How Isentroniq is Breaking the Wiring Bottleneck and Unlocking Large-Scale Quantum Computing

Isentroniq, enabling quantum computing at scale through cutting-edge wiring solutions for solid-state quantum computers, led by Paul Magnard and Théodore Amar, has secured a €7.5 million funding round led by Heartcore with participation from OVNI Capital, Kima Ventures, iXcore, Better Angle, Epsilon VC, as well as the support from Bpifrance and the French National Research Agency (ANR) under the France 2030 program.

The funding will help the company advance its breakthrough wiring technology, grow its engineering team, and form key industrial partnerships to deliver a plug-and-play solution that enables quantum computer builders to scale their systems.

Quantum computers could revolutionize industries like medicine, energy, and logistics by tackling problems beyond the reach of today’s supercomputers. However, qubits, the core units of quantum information, are fragile and error-prone, requiring thousands to form a single reliable “logical” qubit. To deliver real-world impact, quantum machines must scale from hundreds of qubits today to millions in the future.

Superconducting qubits currently lead the race toward fault-tolerant quantum computing, but cryogenics present a major bottleneck. Each control line within a dilution refrigerator adds both heat and physical bulk, and systems quickly hit their thermal and spatial limits beyond roughly 100 qubits. Scaling to a million qubits with existing infrastructure would demand facilities the size of ten football fields and tens of billions in investment, an unsustainable approach.

Isentroniq’s technology tackles the three core bottlenecks of quantum scaling, heat, cost, and space, allowing up to 1,000× more qubits to be integrated into existing dilution refrigerators. This breakthrough could ultimately reduce the cost of a 1M-qubit system to just €50 million.

The company follows a fabless model, designing its architecture while partnering with a global network of specialized manufacturers. This approach accelerates time-to-market, eliminates heavy capital expenditures, and ensures high industrial-grade quality.

Isentroniq was co-founded by Paul Magnard, a superconducting qubits expert and former lead architect at Alice & Bob with multiple Nature publications, and Théodore Amar, a seasoned operator with experience at Bain & Company and Hilti, and a second-time founder. Together, they combine deep quantum expertise with a track record of scaling complex technologies into commercial products.

As major players like Google, IBM, Amazon, IQM, Alice & Bob, and Rigetti race toward 100k–1M qubits, Isentroniq provides the critical infrastructure layer needed to make these ambitious roadmaps feasible.

In 2026, the company will hire Quantum, Mechanical, Radiofrequency, and Software Engineers, while already accepting spontaneous applications.